Traditionally, observer watches from Glashütte featured two different dial versions. Like the Terrasport I, the first had large numerals with a minute scale on the outer edge of the face. The second version was equipped with a small inner hour circle and a separate outer minute circle. This dial arrangement highlights the time intervals necessary for navigation, enabling the navigator to take an extremely quick time reading. The Terrasport I Beobachter is inspired by this design – which means that now both dial versions of the traditional “Nav B” watches can be found in Mühles’ squadron of pilot watchesReference M1-37-34/4-LB has a black dial and is fitted a black leather strap
